Electroluminescent device having improved light output

Patent · Tue Mar 22 00:00:00 EDT 2011

OSTI ID:1015597

Tyan,; Yuan-Sheng, ^[1]; Preuss, Donald R ^[2]; Farruggia, Giuseppe ^[1]; Kesel, Raymond A ^[3]; Cushman, Thomas R ^[2]

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1. Webster, NY
2. Rochester, NY
3. Avon, NY

An OLED device including a transparent substrate having a first surface and a second surface, a transparent electrode layer disposed over the first surface of the substrate, a short reduction layer disposed over the transparent electrode layer, an organic light-emitting element disposed over the short reduction layer and including at least one light-emitting layer and a charge injection layer disposed over the light emitting layer, a reflective electrode layer disposed over the charge injection layer and a light extraction enhancement structure disposed over the first or second surface of the substrate; wherein the short reduction layer is a transparent film having a through-thickness resistivity of 10.sup.-9 to 10.sup.2 ohm-cm.sup.2; wherein the reflective electrode layer includes Ag or Ag alloy containing more than 80% of Ag; and the total device size is larger than 10 times the substrate thickness.

• Research Organization: Global OLED Technology LLC (Wilmington, DE)
• Sponsoring Organization: USDOE
• DOE Contract Number: FC26-06NT42933
• Assignee: Global OLED Technology LLC (Wilmington, DE)
• Patent Number(s): 7,911,133
• Application Number: US Patent Application 11/746,820
• OSTI ID: 1015597
• Country of Publication: United States
• Language: English

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